Problems

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
0-1 Sequences	10620	1641	15%	0.00	2130	1123	53%	5.6
10 Kinds of People	24514	4987	20%	0.01	4251	3069	72%	5.3
2048	9982	4572	46%	0.00	4384	3765	86%	2.3
2, 4, 6, Greaaat	681	106	16%	0.15	72	36	50%	9.1
3D Printed Statues	13062	5991	46%	0.00	5586	5011	90%	2.0
3D Printer	928	154	17%	0.00	379	117	31%	8.8
3-Sided Dice	2768	222	8%	0.00	446	158	35%	8.7
4 thought	11305	3857	34%	0.00	3717	3139	84%	2.5
A1 Paper	6321	1896	30%	0.00	1871	1493	80%	3.6
Aaah!	33506	15628	47%	0.00	14005	13078	93%	1.5
Abandoned Animal	2398	529	22%	0.03	607	441	73%	5.6
ABC	17701	8075	46%	0.00	7612	6916	91%	1.7
Ab Initio	1545	274	18%	0.09	236	145	61%	7.6
Above Average	11821	4911	42%	0.00	4723	4235	90%	2.0
A+B Problem	9118	900	10%	0.03	1301	428	33%	8.3
A Brief Gerrymander	508	102	20%	0.12	93	44	47%	8.9
Abstract Art	428	139	32%	0.00	115	88	77%	5.7
Abstract Painting	868	358	41%	0.00	327	266	81%	4.0
Absurdistan Roads II	685	233	34%	0.00	230	154	67%	6.9
Absurdistan Roads III	1671	480	29%	0.02	457	346	76%	5.7
Access Points	455	159	35%	0.01	151	117	77%	5.7
Accounting	1294	381	29%	0.02	345	238	69%	5.1
A Classy Problem	11870	3113	26%	0.01	2679	2082	78%	4.2
ACM Contest Scoring	8029	5015	62%	0.00	4483	4237	95%	1.4
Add 'Em Up!	2080	509	24%	0.01	526	384	73%	4.8
Adding Words	13196	3252	25%	0.00	3081	2414	78%	3.5
A Different List Game	7422	513	7%	0.00	963	186	19%	9.3
A Different Problem	38160	14114	37%	0.00	12888	11178	87%	2.2
Adjoin the Networks	2376	631	27%	0.00	535	428	80%	5.5
Administrative Difficulties	1603	314	20%	0.03	337	231	69%	6.2
Ads	792	73	9%	0.00	137	49	36%	6.0
Advanced Causal Measurements	125	39	31%	0.10	38	30	79%	7.4
Adventure Begins	306	95	31%	0.06	101	76	75%	5.7
Adventures in Moving -- Part IV	1705	379	22%	0.00	323	269	83%	4.6
A Favourable Ending	1874	510	27%	0.00	476	372	78%	4.4
A Feast For Cats	3068	1161	38%	0.00	827	708	86%	3.9
A Flea on a Chessboard	905	179	20%	0.01	189	131	69%	5.4
A Horse Shoe-In	106	9	8%	0.45	15	8	53%	8.6
AI Jeopardy	465	53	11%	0.02	59	39	66%	7.3
Air Conditioned Minions	6333	1842	29%	0.00	1905	1462	77%	3.9
Airline Hub	2283	504	22%	0.01	441	264	60%	6.6
Airport Coffee	1194	254	21%	0.04	241	170	71%	6.8
Airport Construction	3613	461	13%	0.02	392	210	54%	7.6
Airport Logistics	69	17	25%	0.00	24	17	71%	6.9
Airports	551	163	30%	0.11	148	106	72%	6.1
Akcija	9050	4123	46%	0.00	3718	3330	90%	1.8
Aladin	812	79	10%	0.10	133	30	23%	8.6
Alchemy	171	33	19%	0.02	42	23	55%	8.9
Alchemy 101	396	120	30%	0.05	119	94	79%	3.8
Alea iacta est	45	16	36%	0.19	20	15	75%	6.6
Alehouse	737	289	39%	0.02	265	204	77%	4.7
Alex and Barb	927	319	34%	0.00	365	285	78%	3.3
Alice in the Digital World	5744	1419	25%	0.01	1292	1019	79%	3.9
Alien Codebreaking	274	16	6%	3.23	48	13	27%	8.9
Alien Numbers	2798	1465	52%	0.00	1433	1311	91%	1.9
A List Game	10206	3102	30%	0.00	2965	2520	85%	2.5
All about that base	3196	1267	40%	0.00	1220	1034	85%	2.9
All Different Directions	1611	737	46%	0.00	698	622	89%	2.5
Allergy Test	627	156	25%	0.00	200	97	48%	8.0
All Friends	1124	212	19%	0.00	197	104	53%	8.8
All is Well	121	34	28%	0.03	32	27	84%	6.1
All Just A Dream	2570	661	26%	0.05	492	379	77%	5.3
All Kill	62	49	79%	0.00	38	32	84%	4.2
Alloys	645	230	36%	0.00	234	198	85%	3.8
All Pairs Shortest Path	12818	2414	19%	0.00	1522	1097	72%	5.4
Almost Perfect	11164	2536	23%	0.00	2634	2090	79%	3.3
Almost Union-Find	9483	1625	17%	0.02	1479	878	59%	6.2
Alphabet	2362	1204	51%	0.00	1139	969	85%	3.0
Alphabet Animals	3256	957	29%	0.00	899	735	82%	3.3
Alphabet Spam	9915	6165	62%	0.00	5170	4973	96%	1.3
Alternating Current	648	632	98%	0.00	106	104	98%	1.3 - 7.8
Alternative Anagram	238	78	33%	0.00	66	52	79%	6.5
Alternative Bracket Notation	216	93	43%	0.00	100	83	83%	5.0
Altruistic Amphibians	512	135	26%	0.22	113	84	74%	5.3
Amalgamated Artichokes	4790	2142	45%	0.01	1893	1669	88%	2.5
Amanda Lounges	1778	536	30%	0.03	451	368	82%	5.2
A Mazing!	3667	995	27%	0.09	370	279	75%	5.4
Amazing Adventures	416	121	29%	0.02	134	97	72%	6.2
Amazing Race	403	104	26%	0.29	107	76	71%	7.3
Ambiguous Result	274	62	23%	0.02	94	59	63%	7.6
Amsterdam Distance	2140	1056	49%	0.00	1072	917	86%	2.5
A Multiplication Game	1134	460	41%	0.00	490	381	78%	4.1
Anagram Counting	4450	1767	40%	0.00	1715	1443	84%	2.8
Andrew the Ant	435	134	31%	0.05	140	108	77%	4.9
A New Adventure	1316	199	15%	0.00	206	146	71%	5.8
A New Alphabet	12904	5822	45%	0.00	5416	5006	92%	1.7
An I for an Eye	1034	307	30%	0.00	349	265	76%	4.5
Animal Classification	1654	384	23%	0.03	326	219	67%	6.8
An Industrial Spy	2082	1144	55%	0.02	889	781	88%	2.8
Annoyed Coworkers	70	16	23%	0.04	14	13	93%	4.8
Another Brick in the Wall	3955	2005	51%	0.00	1951	1785	91%	1.9
Another Candies	9392	2603	28%	0.00	2654	2218	84%	2.5
Another Coin Weighing Puzzle	487	143	29%	0.00	118	101	86%	4.9
Another Dice Game	117	76	65%	0.00	74	64	86%	4.2
Another Query on Array Problem	1840	231	13%	0.05	370	164	44%	7.9
Antenna Placement	180	75	42%	0.00	62	46	74%	7.1
Anthony and Cora	1063	291	27%	0.00	335	229	68%	5.7
Anthony and Diablo	4042	1479	37%	0.00	1493	1301	87%	2.4
Antiarithmetic?	2034	387	19%	0.01	442	253	57%	7.5
Ants	4532	2056	45%	0.00	1682	1474	88%	2.5